"A huge congratulations to 16 year old Olympic Gold Medalist Gabby Douglas -- Wow -- what a thrill to watch you take this Gold!" Jay-Z's wife and mother of their six-month-old daughter, Blue Ivy, wrote. "I can tell you've been working hard for so long -- enjoy this moment, it's yours.

With her victory, Gabby became the first African-American to win the top prize. "Someone mentioned that I was the first black American (to win the all-around gold), and I said, 'Oh yeah, I forgot about that!' I feel so honored," she told reporters via The Associated Press after her win.